Bangalore vs Tiruchirappalli
Side-by-side air quality comparison between Bangalore and Tiruchirappalli.
Live AQI from Open-Meteo CAMS (~45 km global model, updated hourly). Multi-year history from CPCB station data via aqinow.co pipeline (2016–2024, station-level daily records).
AQI Comparison
Pollutant-level comparison (PM2.5, PM10, O3, NO2, SO2, CO)▾
| Pollutant | Bangalore | Tiruchirappalli |
|---|---|---|
| PM2.5(µg/m³) | 5.10 | 5.60 |
| PM10(µg/m³) | 5.60 | 6.40 |
| NO₂(µg/m³) | 9.50 | 6.80 |
| SO₂(µg/m³) | 4.20 | 3.40 |
| O₃(µg/m³) | 35.00 | 40.00 |
| CO(µg/m³) | 290.00 | 134.00 |
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Bangalore averaged an AQI of 74 while Tiruchirappalli averaged 50 — a 24-point (48%) gap, with Bangalore the more polluted and Tiruchirappalli the cleaner of the two. On 88 days when both cities reported, Tiruchirappalli was cleaner on 88 of them; the average daily gap was 76 AQI points.
Seasonality & days
Bangalore peaks in March, while Tiruchirappalli peaks in January. Bangalore logged 0.5% Severe days and 42.6% Good-or-Satisfactory days; Tiruchirappalli was 0% Severe and 96.5% Good-or-Satisfactory. Longest clean-air streaks: Bangalore 31 days, Tiruchirappalli 46 days.
Year-over-year progress
Bangalore has improved by 26 AQI points (26%) from 2016 to 2024; Tiruchirappalli has improved by 23 AQI points (31.5%) over the same window. The worst recorded day for Bangalore reached AQI 500 at Silk Board (KSPCB) on 2024-01-10; Tiruchirappalli hit AQI 114 at St Joseph College (TNPCB) on 2024-01-14.
Station-level disparity
Bangalore spans 14 CPCB stations with a 50-point spread (min 49, max 99); Tiruchirappalli spans 1 stations with a 0-point spread (min 52, max 52).
Verdict
Both Bangalore and Tiruchirappalli have the same AQI of 9 right now.